Journals and Conferences

In pervasive computing environments, a user can access resources and services from any where and at any time; thus a key security challenge in these environments is the design of an effective access… (More)

In this paper, we present the design and implementation of a tunable multi-band LNA for the mobile WiMAX (802.16e) standard using 0.13μm CMOS process. The target frequency bands include 2.5~2.9GHz,… (More)

Nowadays, since devices can find more than one access point (AP) in wireless local area networks (WLANs), we are supposed to choose the access point which tends to provide the best performance based… (More)

In the context of sensor networks, where every few dB saving counts, the novel node cooperation schemes are reviewed where MIMO techniques play a leading role. These methods could be treated as joint… (More)

Resources and services are accessible in pervasive computing environments from anywhere and at anytime. Also, due to ever-changing nature of such environments, the identity of users is unknown.… (More)

In this paper, we consider physical-layer network coding (PNC) in a multi-unicast wireless cooperative network with a single relay. We aim to deal with the NC noise, i.e., an additional noise term… (More)

Network coding (NC) is known as a promising approach to improve the cooperative communication network throughput. However, in certain situations, it can introduce additional noise terms which is… (More)

Since message content is of high importance in Vehicular Ad-hoc Networks (VANETs), we are proposing a network design with the message priority considered as the main factor. In this regard, we have… (More)

Vehicular ad hoc networks (VANETs) have been proposed to provide safety and non-safety services for the passengers on board. Reliability in broadcasting of safety messages is one of the fundamental… (More)